@nfrankel

Writing an agent skill

5d ago · 6 min read · Most developers now use coding assistants. I do too—Copilot at work, Claude Code at home. As a developer, I prefer not to repeat myself. This post explains why and how to avoid repetition as a skill.

Pi-hole behind Tailscale

Mar 12 · 6 min read · As I age, I become increasingly cautious about my privacy. The slope the world is sliding on is also a big, unfortunate incentive. I have been eying Pi-hole for some time: in this post, I want to expl

JVM timing options

Feb 26 · 4 min read · For as long as I have been coding in Java, we have had requirements to measure the execution time of blocks of code. While the current good practice is to use OpenTelemetry's traces, not every company

Migrating from Jekyll to Hugo... or not

Feb 19 · 6 min read · Most of my blog posts are lessons learned. I'm trying to achieve something, and I document the process I used to do it. This one is one of the few where, in the end, I didn't achieve what I wanted. In this post, I aim to explain what I learned from t...

Feedback on checked exceptions and lambdas

Feb 5 · 3 min read · I got a lot of interesting feedback on Checked exceptions and lambdas. Let's start with my own: after writing the post, I realized I had written a similar post some time ago. Mistakes I made I made a mistake in the code regarding Apache Commons Lang ...